> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chromaflow.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Observability & SRE

> Metrics, logs, tracing, SLOs, and runbooks to keep real-time systems healthy at global scale.

# Observability

* Metrics: latency, token usage, error rates, WS connections
* Logs: structured JSON with correlation IDs
* Tracing: edge traces and spans across chat → tools → storage
* Alerts: error budgets, quota breaches, degraded regions

## SLOs and SLAs

| Service             | SLO               | Notes                   |
| ------------------- | ----------------- | ----------------------- |
| Chat Streaming      | p99 \< 150ms step | Measured at edge SSE    |
| WebSocket Broadcast | p99 \< 30ms       | Durable Object affinity |
| Auth Validation     | p99 \< 50ms       | Token cache enabled     |

## Health Checks

* /health verifies DB, integrations, and secrets
* Synthetic probes per region
* Canary deploy with automatic rollback

## Runbooks

* Stripe webhook retries
* Supabase outage fallback (read-only)
* Edge region failover

See also: [Architecture](architecture), [Performance](performance).